Attributed to the following source: •
Alyson Stoner as Little Engine, a steam shunter engine who dreams of being a Dream Hauler and becomes close friends with Richard •
Whoopi Goldberg as Tower, a control tower who is in charge of everyone in the train yard •
Patrick Warburton as Caboose, a red caboose who is part of the birthday train •
Jeff Bennett as Red Engine, the red #35 Dream Hauler • Bennett also voices Hudson, a green and white
sock monkey with a British accent who serves as the vice leader of the toys and Little Engine's fireman • Mocean Melvin as Big Locomotive, a silver streamlined Dream Hauler with purple and orange stripes •
Jim Cummings as Rusty, a senior Dream Hauler and friend to Little Engine • Cummings also voices the Evening Express, a white streamlined Dream Hauler who pulls a fast express •
Rodney Saulsberry as Freight Train, a green and orange Dream Hauler who hauls heavy freight trains • Saulsberry also voices Bud, a toy giraffe. He is much less talkative compared to Lou and does not speak until near the end of the film. •
Brenda Song as Shiny Passenger Train, a yellow Dream Hauler who is very full of herself. She is one of many who was sent to help dig out the tunnel. • Chelsea Erinne Evered as an unnamed pink and white diesel engine who gives Rusty a broom-plow in place of his cowcatcher and gives it back at the end of the film. •
Ray Porter as Nightmare Train, a black experimental steam engine with power over nightmares •
Dominic Scott Kay as Richard, a boy who is brought to Dream Land when Rusty accidentally falls asleep on the job, ripping a hole in the dream-reality continuum. Little Engine volunteers to take him home, and they become close friends. •
Khamani Griffin as Marcus, Richard's best friend. • Michael Rodrigo and Luke Williams as Scott and Stretch, a pair of bullies who antagonize Richard in the real world. •
Jamie Lee Curtis as Bev, a female clown toy who serves as the leader of the toys and Little Engine's engineer •
Charlie Schlatter as Major, a toy soldier who often finishes his sentences with "sir". He gives up his badge to help bandage a leak in Little Engine's water tank. •
Jodi Benson as Jillian, a ballerina doll who dances when she is happy •
Corbin Bleu as Lou, a toy giraffe who forms a duo with Bud ==Reception==